Cybercrime crosses borders owing to its instant and volatile nature. Dealing effectively with this crime requires a genuine harmonisation of criminal legislation, enhanced sharing of information and international cooperation, optimising the resources available to judicial investigators, as well as optimal training for all those involved in law enforcement. The Budapest Convention of 2001 is a major step forward. But although more States are adopting it, there is still a lot to be done to enhance mutual legal assistance in dealing with cybercrime.